A complete 7/10 of a work in 15 days. Af...

A complete `7/10` of a work in 15 days. After that he completes the work in 4 days with help from B. Find the number of days to complete the whole work if A and b work together from start.

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RS AGGARWAL-TIME AND WORK-All Questions

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A does 4/5 of a work in 20 days. He then calls B and they together fin...
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